Confidence:StrongSolidPlausibleTentativeSpeculative

• Immortal Coil

  2BB

  ArtifactB

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Likeness Looter

  UB

  Creature — Faerie ShapeshifterBU

  Graveyard copier: one card stocks the graveyard (mill, surveil, dredge) and the other can repeatedly become a copy of a card that's there, borrowing its abilities without recasting it — the Shifting Woodland + Aftermath Analyst shape.
• Morska, Undersea Sleuth

  GWU

  Legendary Creature — Vedalken Fish DetectiveGUW

  Both cards trigger when a card is drawn — they fire together.
• Rinoa, Angel Wing

  2W

  Legendary Creature — Human Rebel WarlockW

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Illicit Masquerade

  3B

  EnchantmentB

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Avatar Kyoshi, Earthbender

  5GGG

  Legendary Creature — Human AvatarG

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Toothy, Imaginary Friend

  3U

  Legendary Creature — IllusionU

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Chandra, Flameshaper

  5RR

  Legendary Planeswalker — ChandraR

  Copy engine: one card makes copies of a creature — once a turn, or once for each time you pay its cost — and each copy pays off: the creature's enter-the-battlefield effect fires again, or the hasty copy uses its tap ability. Real, repeatable value — every copy has its turn or its price, so it never goes infinite on its own.
• Keranos, God of Storms

  3UR

  Legendary Enchantment Creature — GodRU

  Both cards trigger when a card is drawn — they fire together.
• Recurring Nightmare

  2B

  EnchantmentB

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• The Mighty Thor, Jane Foster

  1WU

  Legendary Creature — Human God HeroUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Thassa, Deep-Dwelling

  3U

  Legendary Enchantment Creature — GodU

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Nazar, the Velvet Fang

  3B

  Legendary Creature — Vampire WarlockB

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Niv-Mizzet, Parun

  UUURRR

  Legendary Creature — Dragon WizardRU

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Mirrorhall Mimic // Ghastly Mimicry

  3U

  Creature — Spirit // Enchantment — AuraU

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• The Mind Stone

  1W

  Legendary Artifact — Infinity StoneW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Hell's Caretaker

  3B

  Creature — HorrorB

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Soulherder

  1WU

  Creature — SpiritUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Nefarious Lich

  BBBB

  EnchantmentB

  Lifegain pair: one card gains life while the other rewards lifegain. They reinforce each other in a lifegain deck.
• Don & Leo, Problem Solvers

  3W/UW/U

  Legendary Creature — Mutant Ninja TurtleUW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Jackdaw Savior

  2W

  Creature — Bird ClericW

  Graveyard pair: one card brings creatures back from the graveyard repeatedly (or a creature that returns itself), and the other keeps feeding the loop — a recurring reanimator with a payoff, or a sacrifice outlet with a self-recurring creature.
• Egon, God of Death // Throne of Death

  2BB

  Legendary Creature — God // Legendary ArtifactB

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.
• Ezri Dax, Newly Joined

  1W

  Legendary Creature — Trill AdvisorW

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• Slimefoot and Squee

  BRG

  Legendary Creature — Fungus GoblinBGR

  Recursion engine: one card can reanimate repeatedly (an activated ability, or a return that comes back once a turn), and the other is a creature worth bringing back again and again — or a creature you recast from your graveyard beside a sacrifice outlet that doesn't pay for the recast. Real, repeatable value — not an infinite loop on its own.
• Niv-Mizzet, the Firemind

  2UURR

  Legendary Creature — Dragon WizardRU

  Draw pair: both cards engage with card draw. With a damage-or-draw trigger between them they form a draw engine.